Table 1: Patients’ enrolment criteria.

Group I Group II
Age (years) 9.1±1.6 9.3±1.2
Gender Males 23 (44.2%) 24 (48%)
Females 29 (55.8%) 26 (52%)
Glass Wearer Yes 16 (30.8%) 17 (34%)
No 36 (69.2%) 33 (66%)
CISS Score 27.9±4.6 27.7±3.9
NCP (cm) 10±2.6 9.5±3.1
PFV (Δ) 11.1±1.7 11±1.7

Data are presented as mean ±SD & numbers; percentages are in parenthesis; CISS: Convergence insufficiency Symptom Survey score; NPC: Near convergence point; PFV: positive fusional vergence.